Report #42419
[synthesis] Agent executes destructive tool calls based on assumptions about file or system state that changed N steps ago
Mandate a read/re-connaissance step immediately preceding any destructive write/mutation step, explicitly passing the read output into the tool call context.
Journey Context:
Agents often read a directory or file early in a long chain of thought. By step 10, they decide to modify the file based on the state from step 2. However, another process \(or the agent itself in a parallel branch\) may have modified the file. The agent executes a destructive rm or overwrite based on stale state. Forcing a read-before-write ensures the agent acts on current reality, not cached context.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T01:40:24.193363+00:00— report_created — created